A Palm Beach County couple filed a lawsuit this week, alleging that administrators at Coral Sunset Elementary School didn't do enough to stop three incidents of sexual assault against their young daughter.

According to the suit, the 6-year-old girl was constantly harassed by her male classmates, and the principal of the school did almost nothing to stop it.

"I was in tears the day it happened," said the girl's father, who did not give his name so as to protect his daughter. "It's been rough."

He said his daughter told him it started when one boy watched and touched her while she was in the bathroom. He said that incident was reported to the principal.

The tipping point, the father said, happened in May of 2011 when three boys approached the girl during recess.

"I guess she was on the monkey bars and they pulled her shorts and underwear down," said the father. "One of them peed on her or in front of her, and then they were touching her."

During a news conference in front of the Boca Raton school, the family's lawyer said there were at least three different incidents of sexual assault.

Attorney Jeff Herman admits the boys are likely too young to understand what they were doing, let alone be charged, but they do want to hold the school district responsible.

"What should have happened there is that this girl and this boy never should have been left unsupervised again," said Herman.

The school district released a statement saying it doesn't comment on pending litigation. Meanwhile, the family said it will take this case to federal court.

"In terms of who is at fault, the school board is at fault," said Herman. "No. 1, they had notice. This was an ongoing sexual harassment against this little girl (who was in kindergarten) who is now afraid to go to school. She's been sexualized at a very young age, and this will have long-term consequences for her."